The long-run aggregate supply curve shifts outward when A. there are changes in the power of government. B. there is economic growth. C. there is increased demand of real goods and services. D. the real-balance effect takes hold.

B. there is economic growth.

Explanation:

The long-run aggregate supply curve is a a vertical curve that illustrate the way that the aggregate demand in an economy affects the total output of that economy, but only temporarily. Therefore the long-run aggregate supply curve shifts outward when there is economic growth within the economy in question. This can be seen from the graph below.

a) which ethnic groups live in this community?

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for many centuries there were important factors which the economies of the muslim empires developed increasingly. they applied economic procedures in production, investment, finance, taxation and property. they used to tax certain goods (for example: harvest), they charged interest on money lent, they signed contracts with merchants; they relied on a common currency, and they used checks as well as promissory notes. with the money collected by means of taxation, the government provided the needy with an income. in addition, trading networks covered huge distances, so far regions started to have contact and exchange goods. this trade network covered areas of asia, africa and europe.